Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 375, NWS Cheyenne, WY

August 27, 2023Cheyenne County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 27, 2023, 9:08 PM MDT for Cheyenne County, Nebraska. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 27, 2023, 9:08 PM MDT (03:08 UTC)
Expired
Aug 27, 2023, 9:42 PM MDT
In force
34 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Cheyenne County, NE

The radar

The Cheyenne radar (KCYS), 152 km from the middle of the area, began a volume at 03:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 3.1 hours before the alert went out and 467 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Dodge City, at 00:00Z on 2023-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 00:00Z on 2023-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2400 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 27, 6:30 PM MDTSpecial Weather StatementCYSPlatte30 min
Aug 27, 8:24 PM MDTAreal Flood AdvisoryCYSNiobrara3 hr
Aug 28, 12:30 PM MDTSpecial Weather StatementCYSGoshen30 min
Aug 28, 1:26 PM MDTSpecial Weather StatementCYSGoshen34 min
Aug 28, 1:32 PM MDTSpecial Weather StatementCYSAlbany28 min
Aug 28, 2:01 PM MDTSpecial Weather StatementCYSAlbany29 min
Aug 28, 2:30 PM MDTSpecial Weather StatementCYSAlbany30 min
Aug 28, 2:43 PM MDTSevere Thunderstorm WarningCYSAlbany, Laramie47 min
Aug 28, 2:48 PM MDTSpecial Weather StatementCYSAlbany27 min
Aug 28, 3:07 PM MDTSpecial Weather StatementCYSLaramie23 min
Aug 28, 3:29 PM MDTSpecial Weather StatementCYSLaramie31 min
Aug 28, 3:40 PM MDTSpecial Weather StatementCYSAlbany35 min
Aug 28, 3:51 PM MDTSpecial Weather StatementCYSLaramie24 min
Aug 28, 4:10 PM MDTSpecial Weather StatementCYSLaramie35 min
Aug 28, 4:14 PM MDTSpecial Weather StatementCYS61 min
Aug 28, 4:37 PM MDTSpecial Weather StatementCYSLaramie38 min
Aug 27, 7:02 PM MDTSpecial Weather StatementCYSMorrill28 min
Aug 27, 7:30 PM MDTSpecial Weather StatementCYSBanner, Scotts Bluff30 min
Aug 27, 8:09 PM MDTSpecial Weather StatementCYSCheyenne36 min
Aug 27, 8:45 PM MDTSpecial Weather StatementCYSCheyenne45 min
Aug 28, 4:30 PM MDTSpecial Weather StatementCYSKimball30 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2023Every severe thunderstorm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.